TEA1103T Datasheet | NXP Semiconductors

FEATURES - Safe and fast charging of Nickel Cadmium (Ni Cd) and Nickel Metal Hydride (Ni MH) batteries - Pin patible with the TEA1102x, fast charge ICs for Li Ion, SLA, Ni Cd and Ni MH batteries - Three charge states for Ni Cd or Ni MH; fast, top-off and trickle or voltage regulation (optional) - Adjustable fast charge current [0.5CA to 5CA nominal (CA = Capacity Amperes)] - DC top-off and pulsating trickle charge current (Ni Cd and Ni MH) - Temperature dependent ∆T/∆t battery full detection - Automatic switch-over to accurate peak voltage detection (- 1⁄4%) if no NTC is applied - Possibility to use both ∆T/∆t and peak voltage detection as main fast charge termination - Support of inhibit during all charging states - Manual refresh with regulated adjustable discharge current (Ni Cd and Ni MH) - Voltage regulation in the event of no battery - Support of battery voltage based charge indication and buzzer signalling at battery insertion, end of refresh and at full detection - Single, dual and separate LED outputs for indication of charge status state - Minimum and maximum temperature protection - Time-out protection - Short-circuit battery voltage protection - Can be applied with few low-cost external ponents. ORDERING INFORMATION TYPE NUMBER TEA1103 TEA1103T TEA1103TS PACKAGE NAME DIP20 SO20 SSOP20 DESCRIPTION plastic dual in-line package; 20 leads (300 mil) TEA1103; TEA1103T; TEA1103TS GENERAL DESCRIPTION The TEA1103x are fast charge ICs which are able to fast charge Ni Cd and Ni MH batteries. The main fast charge termination for Ni Cd and Ni MH batteries are ∆T/∆t and peak voltage detection, both of which are well proven techniques. The TEA1103x automatically switches over from ∆T/∆t to peak voltage detection if the thermistor fails or is not present. The ∆T/∆t detection sensitivity is temperature dependent, thus avoiding false charge termination. Three charge states can be distinguished; fast, top-off and trickle. Several LEDs, as well as a buzzer, can be connected to the...